I can't say what is better or not. I've had DI guns a like them and have PWS rifles and like them. AGB is so nice b/c I run supers and subs in both 16" and 10.5" run both beautifully. The piston rifles are definitely heavier and louder from my vantage point and PWS is quite a price bump over a lot of DI options I just like 'em so indulge myself. I believe I just went over 7k rounds on my 7.62x39 16" and it just rips and incredibly accurate for that round. I wouldn't hesitate to run a DI gun again I just got switched on to PWS several years ago and like em. Might build myself an x39 7" in DI with AGB one of these days too....both systems have worked great for me.